Method for improving pulloff strength in pin-reinforced sandwich structure
US5876652A · kind A · utility
53Cited by
13References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1997 |
| Grant date | Mar 2, 1999 |
| Priority date | — |
| Expiry date | Jun 13, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/651
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Improved pin-reinforced sandwich structure ties the face sheets (typically on opposite sides of a foam core) together with a plurality of Z-pins that extend into each face sheet (through the core). The pins are arranged in a tetrahedral or hat section configuration in 2-dimensional or 3-dimensional arrangements to provide enhanced reinforcement, particularly in shear. We are able to improve the pulloff strength additionally by dimpling the core surrounding the pins to produce adhesive fillets along the pins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.